More complex counter example

6 – Sequential Logic Implementation

© 1996 Gaetano Borriello

• Complex counter

  • repeats 5 states in sequence
  • not a binary number representation

• Step 1: derive the state transition diagram

  • count sequence: 000, 010, 011, 101, 110

• Step 2: derive the state transition table from the state transition diagram

14

Note: don't care conditions arise from unused states

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